jonesalexryan

I had this problem in my 2018, try pulling the fuse for your drivers tail light running lights, if that solves it then put it back in, crawl under your truck and you’ll find a junction box beside the spare tire on the drivers side where the main wiring harness splits into drivers taillight / passengers / camera / trailer plug. Find the plug for the drivers tail light harness and un plug it. If that also makes the problem go away then order a new harness from that box to the drivers tail light. I bought them from the dealer for $30 Canadian. Had this happen to me 3 years in a row in the winter time. I finally ended up wrapping the connector in 1” wire loom and that seems to help. I believe the issue is corosion getting into the connector and causing a short from the drivers side running light to the camera. Hope this helps.

Hello, I have the same issue. Were you able to figure it out?

Curious if you ever got this finished. Looking to do the same. Thanks

Well. It bothered me enough that I had to get to the bottom of it. A few things to note. I have led reverse bulbs and I have tie ins to both the running light and the reverse light wire feeds on this harness and thought that one of these things were to blame. After turning the key all the way ahead and turning the lights on I cut apart the factory harness until I could isolate what it was that was causing the back feed from the running light circuit to the reverse light circuit. loe and behold I got all the way back to the plug mentioned above and cut the wires off about 2” from the plug and plugged it back in and I STILL had the problem but if I unplugged it my problem went away. So I took apart the female (tail light harness) side of the plug and found that the brown wire (running lights) sits next to the light green wire (reverse lights) and somehow even though I had di-electric grease in the connector, water got in and caused the short between the two pins. (We’ve had a lot of freeze thaw here in eastern Canada in the last week maybe forced itself in?) In summary I cut up a perfectly good harness to find out that I could have fixed all my problems with a can of compressed air or a blow gun from an air compressor. hope this helps someone in the future.

If you can get it to stay that way, leave the running lights on while in park and pull the fuse for the drivers side and see if it stops. that way you can isolate it weather its left or right side. This is the junction box i found the corosion in. The second plug in from the left is the drivers tail light (yellow tape) and the one to the right of that is the passengers. I believe they replaced the drivers harness from here right to the bulbs last time to fix the problem.

I contacted my dealers service manager and hes out today but is going to get back to me tomorrow with what exactly they did to fix mine the first time, ill let you know what they come back with but if you can get yours to happen again or if it gets worse try toggling the running lights on and off as my problem doesnt exist if the running lights are off.

I had this same problem in Jan 2019 and narrowed it down to the left rear running lights were activating the reverse lights, if i removed the fuse for the left rear tail light running lights the problem went away, i took it to the dealer and they routed the problem to corrosion in the left tail light harness where it connects to a junction box beside the spare tire. I wake up this morning to the same problem again, except i find no corrosion in the plug beside the spare tire. Anyone else have anymore information to add? or find out whats causing this?